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GL811
http://www.genesyslogic.com/content...astcidx=3&SN=32

The GL811 is a highly-compatible, low cost USB2.0 to ATA/ATAPI bridge controller which integrates Genesys Logics own design USB 2.0 UTMI transceiver. As a one-chip solution that complies with Universal Serial Bus Specification Rev. 2.0 and ATA / ATAPI-6 Specification Rev 1.0 (PIO mode 0~4, DMA mode 0~2, and UDMA mode 0~5), the GL811 can support various kinds of ATA / ATAPI device....

按照網頁所示，811 "有" 支援 PIO 0~4、DMA 0~2、UDMA 0~5。


GL811「E」
http://www.genesyslogic.com/content...astcidx=3&SN=34

The GL811E is an ultra-compatible, high performance USB 2.0 to ATA/ATAPI bridge controller that integrates Genesys Logic’s own UTMI (USB 2.0 Transceiver Macrocell Interface) transceiver design...

多一個 ultra，不知道改了啥?